SKU: MMTS-F2D-11L | UPC: 748354015683
Mishimoto 2011-2021 Ford 6.7L Powerstroke Low-Temperature Primary Cooling System Thermostat
Direct replacement thermostat lowers opening temperature to 160°F from OEM 203°F for faster engine warm-up and sustained lower coolant temperatures in 2011-2021 Ford F-250/F-350 Super Duty models with 6.7L Powerstroke diesel. Reduces intake air temperatures and exhaust gas temps during towing or heavy loads while maintaining precise coolant flow control. Engineered for seamless integration into factory primary cooling system boosting overall engine efficiency and reliability.
Key Features
- Lower Opening Temperature: Activates at 160°F to circulate coolant sooner preventing heat soak and enabling consistent lower operating temps under demanding conditions
- CNC-Machined Aluminum Housing: Precision-machined from high-strength aluminum for corrosion resistance and exact OEM-spec dimensions ensuring leak-free performance
- Brass Thermostat Construction: Durable brass valve with stainless steel spring rated for high-pressure diesel cooling systems providing reliable open/close cycles over thousands of miles
- Direct-Fit Design: Bolts directly into factory location on 2011+ 6.7L Powerstroke primary circuit no modifications required for F-250 F-350 F-450 F-550 Super Duty trucks
- Enhanced Cooling Flow: Increases coolant velocity through radiator lowering EGTs by up to 50°F and intake temps for improved throttle response and fuel economy
Product Notes
- Replace OEM thermostat during service to restore factory cooling efficiency and gain performance advantages
- Pair with Mishimoto intercooler or radiator for maximum temperature reduction in tuned trucks
- Product ships fully assembled ready for installation
Installation Notes
- Professional installation recommended.
- Drain coolant system completely before removal to avoid air pockets or spills
- Includes all necessary O-rings and seals compatible with factory hardware
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2011-2021 | Ford | F-250 Super Duty | King Ranch |
| 2011-2021 | Ford | F-250 Super Duty | Lariat |
| 2018-2021 | Ford | F-250 Super Duty | Limited |
| 2013-2021 | Ford | F-250 Super Duty | Platinum |
| 2011-2021 | Ford | F-250 Super Duty | XL |
| 2011-2021 | Ford | F-250 Super Duty | XLT |
| 2011-2021 | Ford | F-350 Super Duty | King Ranch |
| 2011-2021 | Ford | F-350 Super Duty | Lariat |
| 2018-2021 | Ford | F-350 Super Duty | Limited |
| 2013-2021 | Ford | F-350 Super Duty | Platinum |
| 2011-2021 | Ford | F-350 Super Duty | XL |
| 2011-2021 | Ford | F-350 Super Duty | XLT |
| 2011-2013 | Ford | F-450 Super Duty | King Ranch |
| 2011-2013 | Ford | F-450 Super Duty | Lariat |
| 2013 | Ford | F-450 Super Duty | Platinum |
| 2011-2013 | Ford | F-450 Super Duty | XL |
| 2011-2013 | Ford | F-450 Super Duty | XLT |
| 2011-2013 | Ford | F-550 Super Duty | Lariat |
| 2011-2013 | Ford | F-550 Super Duty | XL |
| 2011-2013 | Ford | F-550 Super Duty | XLT |
Why Choose Mishimoto?
- Proven track record in diesel cooling upgrades for Powerstroke engines worldwide
- Rigorously dyno and flow bench tested for real-world temperature reductions
- Lifetime warranty against defects covers thermostat housing spring and valve
Frequently Asked Questions
- Q: Does this fit 2017-2021 F-250 Super Duty King Ranch 6.7L?
A: Yes direct fit for all listed 2011-2021 F-250 Super Duty trims including King Ranch Lariat XL XLT Limited and Platinum with 6.7L Powerstroke - Q: What materials are used in construction?
A: Brass thermostat valve stainless steel spring and CNC aluminum housing designed for diesel coolant pressures and corrosion resistance - Q: What warranty is provided?
A: Lifetime warranty on all components when installed and used as directed covers manufacturing defects and material failures
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Secure Mishimoto retail box dimensions 5.5 x 5.5 x 3.5 inches
- Weight: 1.1 lbs
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